Dirt Bike Rear Sprockets
Dirt Bike Rear Sprockets for Honda, KTM, Beta & Husqvarna: 42-51 Tooth Steel & Aluminum at JJ Motorsports
Customize your dirt bike's gearing for optimal acceleration or top speed with premium rear sprockets from JJ Motorsports, precision-machined for perfect chain fit, reduced weight, and extreme durability in motocross, enduro, and trail riding. Our selection includes high-tensile steel and lightweight aluminum sprockets in 42-51 tooth counts designed for smoother power transfer, less rotational mass, and customizable ratios to match terrain or riding style. Compatible with top models like Honda CRF, KTM SX/EXC, Beta RR, Husqvarna FC/FE, and more, these race-proven sprockets from trusted brands ensure minimal chain wear, reliable performance, and longevity in muddy, rocky, or high-speed conditions. From JT Sprockets' computer-optimized steel for OEM reliability to Renthal's ultralight aluminum for racing gains, dial in your final drive for tighter woods, faster tracks, or balanced trails with the ideal tooth count.
Shop brands like JT Sprockets, Moose Racing, and Renthal for world-class quality. Explore related categories such as dirt bike front sprockets for full gearing kits or dirt bike drive chains for complete drivetrain upgrades.
Top Dirt Bike Rear Sprockets
- JT Sprockets Steel Rear Sprocket Graphite 48 Tooth JTX251.48GR – 48-tooth hardened steel rear sprocket with graphite finish; computer-designed for perfect chain alignment and durability in off-road conditions.
- JT Sprockets Rear Sprocket Beta/Honda Red 51 Tooth JTA210.51RED – Lightweight aluminum 51-tooth sprocket in red anodized finish for Beta RR and Honda CRF models; reduces unsprung weight for better acceleration.
- Moose Offroad Steel Rear Sprocket 48 Tooth 1210-BET-48-STL – Heavy-duty steel 48-tooth sprocket for Beta models; heat-treated for extreme strength and wear resistance in aggressive off-road use.
- Renthal Rear Sprocket Aluminum 42 Tooth Gas Gas/Husaberg/Husqvarna/KTM 224U-520-42GPSI – Ultralight CNC-machined aluminum 42-tooth sprocket with gold finish; precision engineering for KTM, Husqvarna, and Gas Gas models, ideal for racing.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
SUPERSPROX Steel Rear Sprocket - 52-Tooth RFE-990-52-BLK
SUPERSPROX
$64.95A quality rear sprocket is fundamental to your drivetrain's efficiency, acceleration response, and overall longevity. The SUPERSPROX Steel Rear Sprocket delivers race-proven durability with a lightweight design that won't compromise your bike's...12101944- SKU:
- 12101944
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 52
$64.95Qty in Cart: 0Quantity:Price:$64.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 42-Tooth - Gold - Honda RST-1350-42-GLD
SUPERSPROX
$119.95Rear sprocket wear is one of the fastest-wearing components on your motorcycle, directly impacting acceleration, fuel efficiency, and power delivery. The SUPERSPROX Stealth combines steel teeth that outlast aluminum alternatives by 4x with a lightweight...12101951- SKU:
- 12101951
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- COLOR/FINISH:
- GOLD
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 42
- TYPE:
- REAR
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- MOUNTING POSITION:
- REAR
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 49-Tooth - Red - Beta RST-1512-49-RED
SUPERSPROX
$119.95If you're running a high-displacement bike and tired of replacing sprockets every season, the SUPERSPROX Stealth delivers the durability you need without the weight penalty. Steel teeth engineered to outlast aluminum by 4x mean fewer maintenance...12101953- SKU:
- 12101953
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- RED
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 48-Tooth - Blue - Yamaha RST-245-48-BLU
SUPERSPROX
$119.95If you're running a 1400cc+ machine and tired of replacing sprockets every season, the SUPERSPROX Stealth delivers the durability of steel with the weight savings of aluminum. The steel teeth last 4x longer than aluminum alternatives, while the 70%...12101985- SKU:
- 12101985
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- COLOR/FINISH:
- BLUE
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 50-Tooth - Blue - Yamaha RST-245-50-BLU
SUPERSPROX
$119.95If you're running a high-displacement machine, sprocket wear directly impacts your power delivery and acceleration response. The Supersprox Stealth 50-tooth rear sprocket delivers steel-tooth durability that lasts 4x longer than aluminum alternatives,...12101987- SKU:
- 12101987
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLUE
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 51-Tooth - Blue - Yamaha RST-245-51-BLU
SUPERSPROX
$119.95If you're running a high-displacement sportbike, sprocket wear directly impacts acceleration response and chain longevity. The SUPERSPROX Stealth rear sprocket combines steel teeth that outlast aluminum by 4x with a lightweight aluminum core, giving you...12101988- SKU:
- 12101988
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLUE
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- REAR
- UNITS:
- EACH
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 48-Tooth - Black - Yamaha RST-245-48-BLK
SUPERSPROX
$119.95If you're pushing your Yamaha RST-245 hard on the track or street, sprocket wear will eventually limit your bike's potential. The Supersprox Stealth rear sprocket delivers steel-tooth durability without the weight penalty of a full steel design, giving...12101989- SKU:
- 12101989
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- REAR
- PRODUCT NAME:
- SPROCKET
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 50-Tooth - Black - Yamaha RST-245-50-BLK
SUPERSPROX
$119.95If you're running high-mileage track days or competitive racing on your Yamaha, sprocket wear directly impacts acceleration response and power delivery. The Supersprox Stealth combines steel teeth that resist wear with a lightweight aluminum core, giving...12101991- SKU:
- 12101991
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- UNITS:
- EACH
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 50-Tooth - Gold - Kawasaki RST-460-50-GLD
SUPERSPROX
$119.95If you're running a high-displacement Kawasaki and want sprocket longevity without the weight penalty, the Supersprox Stealth 50-tooth rear sprocket delivers steel-tooth durability in a lightweight package. The hybrid steel-and-aluminum design gives you...12101999- SKU:
- 12101999
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 51-Tooth - Gold - Kawasaki RST-460-51-GLD
SUPERSPROX
$119.95If you're running a high-displacement Kawasaki and tired of replacing rear sprockets every season, the SUPERSPROX Stealth offers a real solution: steel teeth that outlast aluminum by 4x while keeping your bike lighter and more responsive. This is the...12102000- SKU:
- 12102000
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 47-Tooth - Red - Beta RST-8000-47-RED
SUPERSPROX
$119.95If you're serious about reliability without sacrificing weight, the SUPERSPROX Stealth rear sprocket delivers the durability of steel teeth with the lightweight advantage of an aluminum core—a combination that keeps you competitive lap after lap. Steel...12102035- SKU:
- 12102035
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 47
- COLOR/FINISH:
- RED
- CHAIN SIZE:
- 525
- MATERIAL:
- STEEL
- UNITS:
- EACH
- COLOR/FINISH:
- STEALTH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 49-Tooth - Gold - Kawasaki RST-808-49-GLD
SUPERSPROX
$119.95If you're running a high-displacement machine, sprocket wear directly impacts power delivery and chain longevity. The SUPERSPROX Stealth Rear Sprocket combines a lightweight aluminum core with hardened steel teeth to give you the durability of a...12102044- SKU:
- 12102044
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- UNITS:
- EACH
- COLOR/FINISH:
- GOLD
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 45-Tooth - Gold - Husaberg RST-990-45-GLD
SUPERSPROX
$119.95If you're running a high-displacement bike and tired of replacing sprockets every season, the SUPERSPROX Stealth rear sprocket delivers the durability of steel without the weight penalty. By combining hardened steel teeth with a lightweight aluminum...12102054- SKU:
- 12102054
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 45
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- COLOR/FINISH:
- GOLD
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 53-Tooth - Gold - Husaberg RST-990-53-GLD
SUPERSPROX
$119.95If you're running a high-displacement bike and tired of replacing sprockets every season, the SUPERSPROX Stealth 53-tooth rear sprocket delivers the durability you need without the weight penalty. Steel teeth outlast aluminum by 4x, while the lightweight...12102061- SKU:
- 12102061
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- COLOR/FINISH:
- GOLD
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 53
- TYPE:
- REAR
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 52-Tooth - Orange - Husaberg RST-990-52-ORG
SUPERSPROX
$119.95If you're running a high-displacement bike and need a sprocket that won't wear out in a season, the SUPERSPROX Stealth delivers the durability of steel teeth with weight savings that rival aluminum-only designs. The hybrid steel-and-aluminum construction...12102066- SKU:
- 12102066
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 52
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- COLOR/FINISH:
- STEALTH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 48-Tooth - Blue - Husaberg RST-990-48-BLU
SUPERSPROX
$119.95If you're running a high-displacement bike and tired of replacing sprockets every season, the SUPERSPROX Stealth Rear Sprocket cuts maintenance intervals dramatically while keeping rotational mass to a minimum. The hybrid steel-tooth, aluminum-core...12102067- SKU:
- 12102067
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 48
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- COLOR/FINISH:
- STEALTH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 49-Tooth - Blue - Husaberg RST-990-49-BLU
SUPERSPROX
$119.95If you're running a high-displacement Husaberg and want sprocket longevity without the weight penalty, the SUPERSPROX Stealth 49-tooth rear sprocket delivers a proven solution. Steel teeth engineered to last 4x longer than aluminum alternatives keep you...12102068- SKU:
- 12102068
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Stealth Rear Sprocket - 52-Tooth - Blue - Husaberg RST-990-52-BLU
SUPERSPROX
$119.95If you're running a high-displacement Husaberg and want sprocket durability without the weight penalty, the SUPERSPROX Stealth delivers a rare combination: steel teeth that outlast aluminum by 4x, paired with an aluminum core that cuts weight by 70%...12102071- SKU:
- 12102071
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 52
- MATERIAL:
- STEEL
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- COLOR/FINISH:
- BLUE
- COLOR/FINISH:
- STEALTH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
$119.95 -
SUPERSPROX Stealth Rear Sprocket - 49-Tooth - Black - Husaberg RST-990-49-BLK
SUPERSPROX
$119.95If you're running a high-displacement bike and demand sprocket longevity without the weight penalty, the SUPERSPROX Stealth delivers exactly that. The hybrid steel-tooth construction outlasts aluminum by a factor of four while keeping rotational mass...12102072- SKU:
- 12102072
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- STEALTH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REAR
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
SUPERSPROX Rear Sprocket - Black - Honda - 50-Tooth RAL21050BLK
SUPERSPROX
$69.95A lightweight rear sprocket directly impacts acceleration, handling, and overall drivetrain efficiency—especially in racing applications where rotational mass matters. The SUPERSPROX 50-tooth sprocket combines 7075-T6 aluminum construction with precision...12111928- SKU:
- 12111928
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- CHAIN SIZE:
- 520
- MODEL:
- ALUMINUM
- UNITS:
- EACH
$69.95
